redhat man page for mpil_universe_size

MPIL_Universe_size(3)						      LAM/MPI						     MPIL_Universe_size(3)

NAME
       MPIL_Universe_size -  LAM/MPI-specific function to obtain the number of nodes in the MPI environment

SYNOPSIS
       #include <mpi.h>
       int MPIL_Universe_size(int *size)

OUTPUT PARAMETER
       size   - number of nodes in the MPI environment (from lamboot )

NOTES
       This  function is deprecated.  It has been replaced with an MPI-2 attribute on MPI_COMM_WORLD - MPI_UNIVERSE_SIZE , which provides the same
       functionality.  This function is (or effectively is) a wrapper to the replacement attribute, anyway.  User programs should  use	the  MPI-2
       replacement attribute instead of this function.

       Some  functions	are  deprecated  because  their  names	did not conform to the stricter naming conventions of MPI-2; others are deprecated
       because they have been replaced with more flexible functionality.

SEE ALSO
       MPI_Comm_attr_get

LOCATION
       mpil_spawn.c

LAM
/MPI 6.5.8							    11/10/2002						     MPIL_Universe_size(3)